KR102328004B1 - Data transmission method, device, network-side device and user device - Google Patents

Abstract

The present disclosure provides a data transmission method, apparatus, network-side device, and user device. The data transmission method is applied to a first device, comprising: transmitting uplink sounding reference signal (SRS) resource configuration information to a second device, wherein the SRS resource configuration information indicates K SRS resources; receiving, by the second device, an SRS signal transmitted based on the SRS resource configuration information; determining SRS resource indication information (SRI), wherein the SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K; and transmitting the SRI to a second device. includes

Description

Data transmission method, device, network-side device and user device

This application claims priority to Application No. 201710456992.2, filed with the Chinese Intellectual Property Office on June 16, 2017, the entire contents of which are incorporated herein by reference.

An embodiment of the present disclosure relates to the field of communication technology, and more particularly, to a data transmission method, an apparatus, a network-side device, and a user device.

Considering the important effect of MIMO (Multiple-Input Multiple-Output) technology on improving the peak speed and system spectrum utilization, radio access technology standards such as LTE (Long Term Evolution)/LTE-A (LTE-Advanced) are all MIMO+ It is built based on OFDM (Orthogonal Frequency Division Multiplexing) technology. Since the performance gain of the MIMO technology arises from the spatial degrees of freedom that a multi-antenna system can acquire, one important evolutionary direction in the standardization development process of the MIMO technology is the expansion of dimensions.

In LTE Rel-8, it is possible to support MIMO transmission of up to 4 layers. Rel-9 focuses on strengthening MU-MIMO (Multi-User MIMO) technology, and can support up to four downlink day layers in MU-MIMO transmission of TM (Transmission Mode)-8. Rel-10 introduces and supports 8 antenna ports, advances to improve spatial resolution of channel state information, and further extends the transmission capability of SU-MIMO (Single-User MIMO) up to 8 data layers. . Rel-13 and Rel-14 implement FD-MIMO technology that supports up to 32 ports to realize full-dimension and vertical beamforming.

In order to further improve the MIMO technology, a large-scale antenna technology is introduced into a mobile communication system. For a base station, there may be up to 128/256/512 antenna units, and up to 128/256/512 transceivers in a fully digitized large antenna, with each antenna unit connected to one transceiver. By transmitting pilot signals of up to 128/256/512 antenna ports, the UE measures and feeds back channel state information. For a terminal, an antenna array of up to 32/64 antenna d units may be configured. Through beamforming of both the base station and the terminal, a huge beamforming gain is obtained to compensate for signal attenuation due to path loss. In particular, in high frequency band communication, for example, on a frequency point of 30 GHz, the coverage range of a radio signal is extremely limited due to path loss. Through the large-scale antenna technology, it is possible to extend the coverage range of a radio signal within an applicable range.

Beamforming can be realized by analog beamforming and digital-analog hybrid beamforming. In both analog beamforming and digital-analog hybrid beamforming, the analog beamforming weights of both ends of the receiving end and the transmitting end are adjusted, so that the formed beam is the counterpart of communication. It should be in a row and in alignment. For downlink transmission, it is necessary to adjust the beamforming weight transmitted by the base station and the beamforming weight received by the terminal. For uplink transmission, it is necessary to adjust the beamforming weight transmitted by the terminal side and the beamforming weight received by the base station side. The weight of beamforming is typically obtained by transmitting a training signal. In the downlink direction, the base station transmits a downlink beam training signal, and the terminal measures the downlink beam training signal, selects an optimal base station transmission beam, and feeds back beam-related information to the base station, and at the same time provides a corresponding optimal reception Select a beam and save it locally.

A user terminal UE provided with a plurality of transmit antennas can perform uplink beamforming, but in the conventional method, the UE is specific in an uplink sounding reference signal (SRS) resource indicated by a received Transmission Reference Point (TRP). The process of realizing uplink data transmission cannot be determined.

An object of the present disclosure is to provide a data transmission method, an apparatus, a network-side device, and a user device to realize uplink data transmission based on a TRP indication.

In order to achieve the above object, an embodiment of the present disclosure provides a data transmission method. The data transmission method is applied to a first device,

transmitting uplink sounding reference signal (SRS) resource configuration information to a second device, wherein the SRS resource configuration information indicates K SRS resources;

receiving, by the second device, an SRS signal transmitted based on the SRS resource configuration information;

determining SRS resource indication information (SRI), wherein the SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K; and

transmitting the SRI to the second device; includes

The method is

determining a transmission rank indicator (TRI) corresponding to the uplink data transmission of the second device, wherein TRI represents the number of layers of uplink data transmission; and

transmitting the TRI to the second device; further includes

A correspondence relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

The uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by an SRI mapping indicator (LSI); The method is

transmitting the LSI to the second device; further includes

The correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI.

The number L of SRS resources indicated by the SRI coincides with the number of layers or codewords of uplink data transmission.

a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

In order to achieve the above object, an embodiment of the present disclosure further provides a data transmission method. The data transmission method is applied to a second device,

Receiving uplink sounding reference signal (SRS) resource configuration information transmitted by the first device, wherein the SRS resource configuration information indicates K SRS resources;

transmitting an SRS signal to the first device based on the SRS resource configuration information;

Receiving SRS resource indication information (SRI) transmitted by the first device - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than K or equal to - ; and

performing uplink data transmission based on the SRI; includes

The method is

receiving a transmission rank indicator (TRI) corresponding to an uplink data transmission sent by the first device, wherein TRI indicates the number of layers of the uplink data transmission; and

parsing the TRI to obtain the number of layers of uplink data transmission determined by the first device for the second device; further includes

A correspondence relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

The uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by an SRI mapping indicator (LSI); The method is

receiving the LSI transmitted by the first device; and

parsing the LSI to obtain a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources; further includes

a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI;

The step of transmitting uplink data based on the SRI comprises:

parsing the SRI to obtain a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources; and

transmitting an uplink data transport layer corresponding to each of the L SRS resources; includes

The number L of SRS resources indicated by the SRI coincides with the number of layers or codewords of uplink data transmission.

a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

In order to achieve the above object, an embodiment of the present disclosure further provides a data transmission apparatus. The data transmission device is applied to a first device,

a first transmission module for transmitting uplink sounding reference signal (SRS) resource configuration information to a second device, the SRS resource configuration information indicates K SRS resources;

a first receiving module for receiving an SRS signal transmitted by the second device based on the SRS resource configuration information;

A first determination module for determining SRS resource indication information (SRI) - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K - ; and

a second transmitting module for transmitting the SRI to the second device; includes

The device is

a second determining module for determining a transmission rank indicator (TRI) corresponding to the uplink data transmission of the second device, wherein TRI indicates the number of layers of uplink data transmission; and

a third transmitting module for transmitting the TRI to the second device; further includes

A correspondence relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

The uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by an SRI mapping indicator (LSI); The device is

a fourth transmitting module for transmitting the LSI to the second device; further includes

The correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI.

The number L of SRS resources indicated by the SRI coincides with the number of layers or codewords of uplink data transmission.

a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

In order to achieve the above object, an embodiment of the present disclosure further provides a data transmission apparatus. The data transmission device is applied to a second device,

a second receiving module for receiving uplink sounding reference signal (SRS) resource configuration information transmitted by the first device, wherein the SRS resource configuration information indicates K SRS resources;

a fifth transmitting module for transmitting an SRS signal to the first device according to the SRS resource configuration information;

A third reception module for receiving SRS resource indication information (SRI) transmitted by the first device - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, L is less than or equal to K - ; and

an uplink data transmission module for performing uplink data transmission according to the SRI; includes

The device is

a fourth receiving module for receiving a transmission rank indicator (TRI) corresponding to the uplink data transmission sent by the first device, wherein TRI indicates the number of layers of uplink data transmission; and

a first processing module for parsing the TRI to obtain the number of layers of uplink data transmission determined by the first device for the second device; further includes

A correspondence relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

The uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by an SRI mapping indicator (LSI); The device is

a fifth receiving module for receiving the LSI transmitted by the first device; and

a second processing module for parsing the LSI to obtain a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources; further includes

a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI;

The uplink data transmission module comprises:

a parsing submodule for parsing the SRI to obtain a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources; and

a transmission submodule for transmitting uplink data transport layers respectively corresponding to the L SRS resources; includes

The number L of SRS resources indicated by the SRI coincides with the number of layers or codewords of uplink data transmission.

a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

In order to achieve the above object, an embodiment of the present disclosure further provides a network-side device. the network-side device includes a memory, a transceiver, a processor, and a computer program stored in the memory and executable by the processor; when the processor executes the program, transmitting uplink sounding reference signal (SRS) resource configuration information to a second device by the transceiver, wherein the SRS resource configuration information indicates K SRS resources; receiving, by the second device, an SRS signal transmitted based on the SRS resource configuration information; determining SRS resource indication information (SRI), wherein the SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K; and transmitting the SRI to the second device. to implement

In order to achieve the above object, an embodiment of the present disclosure further provides a user equipment. the user equipment includes a memory, a transceiver, a processor, and a computer program stored in the memory and executable by the processor; when the processor executes the program, receiving uplink sounding reference signal (SRS) resource configuration information transmitted by the first device by the transceiver, wherein the SRS resource configuration information indicates K SRS resources; transmitting an SRS signal to the first device based on the SRS resource configuration information; Receiving SRS resource indication information (SRI) transmitted by the first device - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than K or equal to - ; and performing uplink data transmission based on the SRI. to implement

In order to achieve the above object, an embodiment of the present disclosure further provides a computer-readable storage medium. A computer program is stored in the computer readable storage medium, and when the program is executed by a processor, transmitting uplink sounding reference signal (SRS) resource configuration information to a second device, the SRS resource configuration information is K - indicates SRS resources; receiving, by the second device, an SRS signal transmitted based on the SRS resource configuration information; determining SRS resource indication information (SRI), wherein the SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K; and transmitting the SRI to the second device. to implement

In order to achieve the above object, an embodiment of the present disclosure further provides a computer-readable storage medium. A computer program is stored in the computer readable storage medium, and when the program is executed by a processor, receiving uplink sounding reference signal (SRS) resource configuration information sent by a first device - SRS resource configuration information indicates K SRS resources - ; transmitting an SRS signal to the first device based on the SRS resource configuration information; Receiving SRS resource indication information (SRI) transmitted by the first device - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than K or equal to - ; and performing uplink data transmission based on the SRI. to implement

Advantageous effects of the technical solution according to the present disclosure are as follows.

According to the data transmission method according to the embodiment of the present disclosure, SRS resource configuration information indicating K SRS resources configured for the second device is transmitted to the second device, and the second device transmits the SRS resource configuration information. Upon reception, the SRS may be transmitted through the K SRS resources based on the SRS resource configuration information. After receiving the SRS transmitted by the second device, the first device may go further and optimally select L SRS resources from among the K SRS resources and determine the SRI indicating the L SRS resources. Then, the first device transmits the SRI to the second device to notify the second device of the SRS resource of the uplink data transmission. Accordingly, after receiving the SRI, the second device can complete uplink data transmission using the L optimally selected SRS resources. Solve tasks you can't

1 is a flowchart illustrating steps of a data transmission method applied to a first device according to an embodiment of the present disclosure.
2 is a flowchart illustrating steps of a data transmission method applied to a second device according to an embodiment of the present disclosure.
Fig. 3 is a schematic diagram showing the structure of an apparatus in the method shown in Fig. 1;
Fig. 4 is a schematic diagram showing the structure of an apparatus in the method shown in Fig. 2;
5 is a schematic diagram illustrating a structure of a network-side device according to an embodiment of the present disclosure.
6 is a schematic diagram illustrating a structure of a user device according to an embodiment of the present disclosure.

In order to make the technical problems, technical solutions and advantages to be solved by the present disclosure more distinct, it will be described in detail below in conjunction with drawings and specific embodiments.

For the problem that the existing UE cannot determine a specific uplink data transmission realization process, the present disclosure provides a data transmission method. By instructing the UE to use the preferred SRS resource among the initially configured SRS resources, uplink data transmission is realized.

1 , the data transmission method according to an embodiment of the present disclosure is applied to a first device, and includes the following steps.

Step 101: Transmit uplink sounding reference signal (SRS) resource configuration information to the second device, and the SRS resource configuration information indicates K SRS resources.

Step 102: Receive an SRS signal transmitted by the second device according to the SRS resource configuration information.

Step 103: Determine SRS resource indication information (SRI), SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K.

Step 104: Send the SRI to the second device.

Through the above steps, SRS resource configuration information indicating K SRS resources configured for the second device is transmitted to the second device by using the first device as the TRP. Upon receiving the SRS resource configuration information, the second device may transmit the SRS through K SRS resources based on the SRS resource configuration information. After receiving the SRS transmitted by the second device, the first device may go further and optimally select L SRS resources from among the K SRS resources and determine the SRI indicating the L SRS resources. Then, the first device transmits the SRI to the second device to notify the second device of the SRS resource of the uplink data transmission. Accordingly, after receiving the SRI, the second device can complete uplink data transmission using the L optimally selected SRS resources. Solve tasks you can't

L

K)를 선택하여, SRI를 확정할 수 있다. 구체적으로, 상기 제1 기기는 시스템 사전 설정 방식에 의해 L개의 SRS 자원을 선택하는바, 예컨대, 수신 품질이 가장 높은 L개의 SRS 자원(타겟 SRS 자원)을 선택하게 되는데, L은 1보다 크거나 같은 것이 바람직하다. 여기서, 상기 제1 기기가 확정한 SRI값은 L개를 포함할 수 있는바, 즉 각각의 SRI값마다 일 타겟 SRS 자원에 대응된다. In step 103, the first device based on the measurement of the signal quality of the K SRS resources, L SRS resources (1

L

Select K) to confirm the SRI. Specifically, the first device selects L SRS resources according to a system preset scheme, for example, L SRS resources (target SRS resources) having the highest reception quality are selected, where L is greater than 1 or The same is preferable. Here, the SRI value determined by the first device may include L, that is, each SRI value corresponds to one target SRS resource.

In this embodiment, the SRI may be transmitted by downlink control information (DCI). Considering that the quantity of the SRI is one variable, therefore, the payload of the DCI is variable or a fixed value determined by the maximum quantity of the SRI. The actual quantity of SRI values indicated in DCI may be less than or equal to the maximum quantity of SRI values. Some SRI values (if not specified) in the DCI field may be retained. As another possibility, the SRI indicator in DCI is a fixed S-bit information field, and each state of the S-bit information field is configured to be associated with a set of SRS resources by higher layer signaling. Assuming that S=2, the correlation between each state of the S-bit information field and the SRS resource is as shown in Table 1.

SRI indicator information 0 {SRS resource 0} One {SRS resource 0 , SRS resource 1} 2 {SRS resource 2, SRS resource 3} 3 Spare

As shown in Table 1, when the second device receives DCI and the SRI indicator is parsed as '1', the target SRS resource optimally selected by the first device for the second device is 'SRS resource 0, SRS resource. 1' can be seen.

It should be understood that, when the second device performs uplink data transmission, in addition to identifying the target SRS resource determined for it by the first device by receiving the SRI, also identifying the number of layers of uplink data transmission Should be. If the system does not predefine the number of layers of uplink data transmission, the second device cannot determine the number of layers of its uplink data transmission, and thus the uplink data transmission cannot be completed. On the basis of the data transmission method according to the embodiment of the present disclosure,

determining a transmission rank indicator (TRI) corresponding to the uplink data transmission of the second device, wherein TRI represents the number of layers of uplink data transmission; and

transmitting the TRI to the second device; further includes

Here, the first device determines the TRI corresponding to the uplink data transmission of the second device, and transmits the TRI to the second device, so that the second device does not pre-define the number of layers of uplink data transmission by the system. In a non-existent situation, the first device makes it possible to determine the number of layers of uplink data transmission determined for it, so as to complete the final uplink data transmission. The TRI may be transmitted to the second device together with the SRI, or both may be transmitted alone.

In addition, in order to clearly instruct the second device to complete uplink data transmission, in this embodiment, each uplink data transmission layer and at least one SRS resource indicated by the SRI have a corresponding relationship.

Accordingly, the second device may transmit the corresponding uplink data transport layer using the SRS resource indicated by the SRI based on the correspondence relationship.

Specifically, the uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

Accordingly, the second device uses the uplink beamforming matrix corresponding to the optimally selected target SRS resource, based on the correspondence between at least one SRS resource among the target SRS resources and the uplink data transmission layer, for each uplink. The uplink beamforming matrix of the data transport layer can be clearly known. In uplink data transmission, an uplink data transmission layer corresponding to an uplink beamforming matrix of L SRS resources is transmitted.

Also, the antenna panel employed by each uplink data transmission layer is identical to the antenna panel of the SRS resource corresponding to the uplink data transmission layer. The second device can clearly know the antenna panel of each uplink data transmission layer through the correspondence between the target SRS resource and the uplink data transmission layer by the antenna panel corresponding to the optimally selected target SRS resource. . In uplink data transmission, a corresponding uplink data transmission layer is transmitted by an antenna panel of L SRS resources.

Optionally, in this embodiment, the correspondence between each uplink data transport layer and at least one of the L SRS resources is indicated by an SRI mapping indicator (LSI); The method is

transmitting the LSI to the second device; further includes

Here, by indicating the correspondence between each uplink data transport layer and the L SRS resources by the dedicated LSI, and sending the LSI to the second device, and notifying the second device, the second device is uplinked to realize data transmission.

It should be further understood that the correspondence between each uplink data transport layer indicated by the LSI and the target SRS resource may be each uplink data transport layer indication or each codeword indication. Each codeword may be generated by a channel coding module, and subsequently divided into at least one uplink data transport layer correspondingly based on a preset rule.

In Scenario 1, LSI is each uplink data transport layer indication. For example, LSI is a sequence of R variables. R is for indicating the number of layers of uplink data transmission. Each value of these R variables all points to one of L SRI values. As an example, it is assumed that the TRP schedules rank = 2 (R = 2) data transmission. Thus, LSI is R = 2, that is, a sequence of two variables, for example [1 2]. The first variable transmits layer-1 using the antenna panel and/or uplink beamforming matrix of the SRS resource indicated by the first SRI, and the antenna panel and/or uplink beamforming of the SRS resource indicated by the second SRI. Indicates that layer-2 is transmitted using a matrix. This means that the first uplink data transmission layer is transmitted on the same antenna panel for transmitting the SRS indicated by the first SRI, and the second uplink data transmission layer is transmitted on the same antenna panel for transmitting the SRS indicated by the second SRI. Implicitly notify the second device of the sending box.

In Scenario 2, LSI is each codeword indication. For example, LSI is a sequence of C variables. C represents the number of codewords of uplink data transmission. Each of these C variables all refer to one of L SRI values. For example, TRP schedules rank = 6 (R = 6) data transmission, and 6 uplink data transmission layers each belong to 2 codewords, that is, C = 2, and 2 codewords are 6 It is assumed that maps are mapped to layers, and each codeword is mapped to three layers. Therefore, LSI is C=2, that is, a sequence of two variables, for example, [1 2]. The first variable transmits all layers of the first codeword using the antenna panel and/or uplink beamforming matrix of the SRS resource indicated by the first SRI, and the antenna panel and/or uplink of the SRS resource indicated by the second SRI. Indicates that all layers of the second codeword are transmitted using the link beamforming matrix. This is to transmit all uplink data transmission layers of the first codeword mapping in the same antenna panel for transmitting the SRS indicated by the first SRI, and the second codeword in the same antenna panel for transmitting the SRS indicated by the second SRI. Implicitly inform the second device that it transmits all uplink data transport layers of the mapping.

Optionally, in this embodiment, the correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI.

Here, without the need to add a new indicator, the corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated at the same time by using SRI, thereby reducing information transmission and improving resources.

When the SRI indicates the correspondence between each uplink data transmission layer and at least one SRS resource among L SRS resources, specifically, the quantity L of SRS resources indicated by the SRI and the number of layers of uplink data transmission or the number of codewords is the same.

Similar to the specific implementation of the LSI indication above, in scenario 3, when the quantity L of the SRS resource indicated by the SRI and the number of layers of uplink data transmission match, the TRP schedules rank = 2 data transmission, and at this time, the SRI It is assumed that the quantity of SRS resources indicated by L=2. Layer-1 is transmitted using the antenna panel and/or uplink beamforming matrix of the SRS resource indicated by the first SRI, and the antenna panel and/or the uplink beamforming matrix of the SRS resource indicated by the second SRI is used to transmit layer-2. This means that the first uplink data transmission layer is transmitted on the same antenna panel for transmitting the SRS indicated by the first SRI, and the second uplink data transmission layer is transmitted on the same antenna panel for transmitting the SRS indicated by the second SRI. implicitly notify the second device of sending

In scenario 4, when the quantity L of the SRS resource indicated by the SRI and the number of codewords match, the TRP schedules rank = 6 data transmission, and 6 uplink data transmission layers each belong to 2 codewords, It is assumed that the number of codewords D=2, two codewords are mapped to 6 layers, and each codeword is mapped to 3 layers. Therefore, the quantity of SRS resources indicated by the SRI is L = 2, for example, [1 2]. The first variable transmits all layers of the first codeword using the antenna panel and/or uplink beamforming matrix of the SRS resource indicated by the first SRI, and the antenna panel and/or uplink of the SRS resource indicated by the second SRI. Indicates that all layers of the second codeword are transmitted using the link beamforming matrix. This is to transmit all uplink data transmission layers of the first codeword mapping in the same antenna panel for transmitting the SRS indicated by the first SRI, and the second codeword in the same antenna panel for transmitting the SRS indicated by the second SRI. Implicitly inform the second device that it transmits all uplink data transport layers of the mapping.

In addition, in order to achieve more clearly indicating and determining the corresponding relationship between the SRS resource and the uplink data transport layer indicated by the SRI by the SRI, the k-th SRS resource indicated by the SRI and the uplink are further specifically specified. The k-th layer or k-th codeword of data transmission has a corresponding relationship; 1≤k≤L, and k is an integer.

Here, in the case of k=1 as an example, a correspondence relationship exists between the first SRS resource indicated by the SRI and the first layer or the first codeword of uplink data transmission. That is, when the second device performs uplink data transmission, it transmits the first uplink data transmission layer (the first layer of uplink data transmission) by the first SRS resource (the first SRS resource), or the first All uplink data transport layers of the first codeword (first codeword) are transmitted by the SRS resource (the first SRS resource).

And, in this embodiment, the first device may be a network-side device such as a cellular base station, a macro base station, or a wireless LAN WIFI router, and the second device may be a user device such as a mobile phone, a tablet, or a computer. decided not to list.

In summary, according to the data transmission method according to an embodiment of the present disclosure, SRS resource configuration information indicating K SRS resources configured for the second device is first transmitted to the second device, and the second device Upon receiving the SRS resource configuration information, SRS may be transmitted through K SRS resources based on the SRS resource configuration information. After receiving the SRS signal transmitted by the second device, the first device optimally selects L SRS resources from among K SRS resources, based on the SRS signal, and SRI indicating the L SRS resources can be confirmed. Then, the first device transmits the SRI to the second device to notify the second device of the SRS resource of the uplink data transmission. Accordingly, after receiving the SRI, the second device can complete uplink data transmission using the L optimally selected SRS resources. Solve tasks you can't

As shown in FIG. 2 , the data transmission method according to an embodiment of the present disclosure is applied to a second device, and includes the following steps.

Step 201: Receive uplink sounding reference signal (SRS) resource configuration information transmitted by the first device, and the SRS resource configuration information indicates K SRS resources.

Step 202: Transmit an SRS signal to the first device according to the SRS resource configuration information.

Step 203: Receive SRS resource indication information (SRI) transmitted by the first device, SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is K less than or equal to

Step 204: Transmit uplink data according to the SRI.

Through steps 201 to 204, the second device first receives SRS resource configuration information indicating K SRS resources configured by the first device for the second device, and then uses the K SRS resources according to the SRS resource configuration information. transmits the SRS to the first device through to transmit to the device. After receiving the SRI, the second device can complete uplink data transmission using the L optimally selected SRS resources. solve the task

In a situation where the system does not pre-define the number of layers of uplink data transmission, in response to the transmission rank indicator (TRI) confirmed and transmitted by the first device, the method according to the embodiment comprises:

receiving a transmission rank indicator (TRI) corresponding to an uplink data transmission sent by the first device, wherein TRI indicates the number of layers of the uplink data transmission; and

parsing the TRI to obtain the number of layers of uplink data transmission determined by the first device for the second device; further includes

Here, by receiving the TRI corresponding to the uplink data transmission of the second device confirmed and transmitted by the first device, the second device, in a situation where the system does not pre-define the number of layers of uplink data transmission, TRI Through parsing for , the first device may determine the number of layers of uplink data transmission determined for it, thereby completing the final uplink data transmission.

In addition, in order to clearly instruct the second device to complete uplink data transmission, in this embodiment, each uplink data transmission layer and at least one SRS resource indicated by the SRI have a corresponding relationship.

Specifically, the uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

Optionally, a correspondence between each uplink data transport layer and at least one of the L SRS resources is indicated by an SRI mapping indicator (LSI); The method is

receiving the LSI transmitted by the first device; and

parsing the LSI to obtain a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources; further includes

Here, when the first device indicates a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources by the dedicated LSI, the second device receives and parses the LSI, so that L A correspondence relationship between at least one SRS resource among the SRS resources and each uplink data transmission layer is obtained to realize uplink data transmission. Similar to the above embodiment, the correspondence between each uplink data transport layer indicated by the LSI and at least one SRS resource of the target SRS resource is each uplink data transport layer indication or each codeword indication date. Therefore, the description will not be repeated here any longer.

Optionally, in this embodiment, the correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI;

In step 204,

parsing the SRI to obtain a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources; and

transmitting an uplink data transport layer corresponding to each of the L SRS resources; includes

Here, since a new indicator is not added, the first device simultaneously indicates a correspondence relationship between at least one SRS resource among L SRS resources and each uplink data transmission layer using the SRI, and the second device parses the SRI By doing so, it is possible to obtain a correspondence relationship between at least one SRS resource among the L SRS resources and each uplink data transport layer, and transmit the corresponding uplink data transport layer respectively in the L SRS resources.

When the SRI indicates the correspondence between at least one SRS resource among L SRS resources and each uplink data transmission layer, specifically, the quantity L of SRS resources indicated by the SRI and the number of uplink data transmission layers or the number of codewords is the same.

More specifically, a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

According to the method according to the present embodiment, the first device first receives SRS resource configuration information indicating K SRS resources configured for the second device, and then SRS through the K SRS resources according to the SRS resource configuration information. to the first device, so that after the first device receives the SRS, the first device optimally selects L SRS resources among them, determines the SRI indicating the L SRS resources, and transmits it to the second device do. After receiving the SRI, the second device can complete uplink data transmission using the L optimally selected SRS resources. solve the task

It should be explained that since the data transmission method applied to the second device according to this embodiment cooperates with the data transmission method applied to the first device according to the above-described embodiment, it is applied to the above-described first device. The implementation form of the embodiment of the data transmission method is applied to the above method, and the same technical effect can be achieved in the same way, and the description will not be repeated here.

3 , an embodiment of the present disclosure further provides a data transmission apparatus. The data transmission device is applied to a first device,

a first transmitting module 301 for transmitting uplink sounding reference signal (SRS) resource configuration information to a second device, wherein the SRS resource configuration information indicates K SRS resources;

a first receiving module (302) for receiving an SRS signal transmitted by the second device based on the SRS resource configuration information;

First determining module 303 for determining SRS resource indication information (SRI) - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than K or equal to - ; and

a second sending module (304) for sending the SRI to the second device; includes

The device is

a second determining module for determining a transmission rank indicator (TRI) corresponding to the uplink data transmission of the second device, wherein TRI indicates the number of layers of uplink data transmission; and

a third transmitting module for transmitting the TRI to the second device; further includes

A correspondence relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

The uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by an SRI mapping indicator (LSI); The device is

a fourth transmitting module for transmitting the LSI to the second device; further includes

The correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI.

The number L of SRS resources indicated by the SRI coincides with the number of layers or codewords of uplink data transmission.

a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

According to the data transmission apparatus according to the embodiment of the present disclosure, first, SRS resource configuration information indicating K SRS resources configured for the second device is transmitted to the second device, and the second device receives the SRS resource configuration information. Then, SRS can be transmitted through K SRS resources based on the SRS resource configuration information. After receiving the SRS signal transmitted by the second device, the first device may go further to optimally select L SRS resources and determine SRIs indicating the L SRS resources. Then, the first device transmits the SRI to the second device to notify the second device of the SRS resource of the uplink data transmission. Accordingly, after receiving the SRI, the second device can complete uplink data transmission using the L optimally selected SRS resources. Solve tasks you can't

It should be explained that the device is a device to which the data transmission method applied to the first device is applied, and the embodiment of the data transmission method applied to the first device is applied to the device, and the same technical effects can be achieved.

4 , an embodiment of the present disclosure further provides a data transmission apparatus. The data transmission device is applied to a second device,

a second receiving module 401 for receiving uplink sounding reference signal (SRS) resource configuration information transmitted by the first device, wherein the SRS resource configuration information indicates K SRS resources;

a fifth transmitting module (402) for transmitting an SRS signal to the first device according to the SRS resource configuration information;

A third receiving module 403 for receiving SRS resource indication information (SRI) transmitted by the first device - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1 and L is less than or equal to K - ; and

an uplink data transmission module 404 for performing uplink data transmission according to the SRI; includes

The device is

a fourth receiving module for receiving a transmission rank indicator (TRI) corresponding to the uplink data transmission sent by the first device, wherein TRI indicates the number of layers of uplink data transmission; and

a first processing module for parsing the TRI to obtain the number of layers of uplink data transmission determined by the first device for the second device; further includes

A correspondence relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

The uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by an SRI mapping indicator (LSI); The device is

a fifth receiving module for receiving the LSI transmitted by the first device; and

a second processing module for parsing the LSI to obtain a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources; further includes

a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI;

The uplink data transmission module comprises:

a parsing submodule for parsing the SRI to obtain a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources; and

a transmission submodule for transmitting uplink data transport layers respectively corresponding to the L SRS resources; includes

The number L of SRS resources indicated by the SRI coincides with the number of layers or codewords of uplink data transmission.

a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

According to the apparatus according to the present embodiment, the first device first receives SRS resource configuration information indicating K SRS resources configured for the second device, and then SRS through the K SRS resources according to the SRS resource configuration information. to the first device, so that after the first device receives the SRS signal, the first device optimally selects L SRS resources, determines the SRI indicating the L SRS resources, and transmits it to the second device . After receiving the SRI, the second device can complete uplink data transmission using the L optimally selected SRS resources. solve the task

It should be explained that the device is a device to which the data transmission method applied to the second device is applied, and the implementation form of the embodiment of the data transmission method is applied to the device, and similarly the same technical effect can be achieved. have.

Another embodiment of the present disclosure further provides a computer-readable storage medium. A computer program is stored in the computer readable storage medium, and when the program is executed by a processor, transmitting uplink sounding reference signal (SRS) resource configuration information to a second device, the SRS resource configuration information is K - indicates SRS resources; receiving, by the second device, an SRS signal transmitted based on the SRS resource configuration information; determining SRS resource indication information (SRI), wherein the SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K; and transmitting the SRI to the second device. to implement

Optionally, the program, when executed by the processor, comprises: determining a transmission rank indicator (TRI) corresponding to an uplink data transmission of the second device, wherein TRI indicates a number of layers of uplink data transmission; and transmitting the TRI to the second device. can be further implemented.

Optionally, a corresponding relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

Optionally, the uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

Optionally, a correspondence between each uplink data transport layer and at least one of the L SRS resources is indicated by an SRI mapping indicator (LSI); when the program is executed by a processor, transmitting the LSI to the second device; can be further implemented.

Optionally, a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI.

Optionally, the number L of SRS resources indicated by the SRI and the number of layers or codewords of uplink data transmission coincide.

Optionally, a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

The computer-readable medium includes a permanent medium and a non-permanent medium, a removable medium and a non-removable medium, and may realize information storage by any method or technology. The information may be computer readable instructions, data structures, modules of programs, or other data. Examples of storage media for a computer include phase change RAM (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory that may be used to store information accessible by the computer. (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical recording devices, magnetic tape cartridges, magnetic tape magnetic disk storage devices or magnetic recording devices or any other non-transmission media. As defined herein, computer-readable media does not include transitory media such as modulated data signals and carrier waves.

Another embodiment of the present disclosure further provides a computer-readable storage medium. A computer program is stored in the computer readable storage medium, and when the program is executed by a processor, receiving uplink sounding reference signal (SRS) resource configuration information sent by a first device - SRS resource configuration information indicates K SRS resources - ; transmitting an SRS signal to the first device based on the SRS resource configuration information; Receiving SRS resource indication information (SRI) transmitted by the first device - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than K or equal to - ; and performing uplink data transmission based on the SRI. to implement

Optionally, when the program is executed by the processor, receiving a transmission rank indicator (TRI) corresponding to an uplink data transmission sent by the first device, wherein the TRI indicates a number of layers of the uplink data transmission; ; and parsing the TRI to obtain the number of layers of uplink data transmission determined by the first device for the second device. can be further implemented.

Optionally, a corresponding relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

Optionally, the uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

Optionally, a correspondence between each uplink data transport layer and at least one of the L SRS resources is indicated by an SRI mapping indicator (LSI); receiving the LSI transmitted by the first device when the program is executed by the processor; and parsing the LSI to obtain a correspondence between each uplink data transport layer and the L SRS resources. can be further implemented.

Optionally, a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI; when the program is executed by the processor, parsing the SRI to obtain a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources; and transmitting an uplink data transport layer corresponding to each of the L SRS resources. can be further implemented.

Optionally, the number L of SRS resources indicated by the SRI and the number of layers or codewords of uplink data transmission coincide.

Optionally, a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

The computer-readable medium includes a permanent medium and a non-permanent medium, a removable medium and a non-removable medium, and may realize information storage by any method or technology. The information may be computer readable instructions, data structures, modules of programs, or other data. Examples of storage media for a computer include phase change RAM (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory that may be used to store information accessible by the computer. (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical recording devices, magnetic tape cartridges, magnetic tape magnetic disk storage devices or magnetic recording devices or any other non-transmission media. As defined herein, computer-readable media does not include transitory media such as modulated data signals and carrier waves.

5 , an embodiment of the present disclosure further provides a network-side device. the network-side device includes a memory 520 , a transceiver 510 , a processor 500 and a computer program stored in the memory 520 and executable in the processor 500 ; When the processor 500 executes the program, transmitting the uplink sounding reference signal (SRS) resource configuration information to the second device by the transceiver 510 - SRS resource configuration information includes K SRS resources instruct - ; receiving, by the second device, an SRS signal transmitted based on the SRS resource configuration information; determining SRS resource indication information (SRI), wherein the SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K; and transmitting the SRI to the second device. to implement

The transceiver 510 is for receiving and transmitting data under the control of the processor 500 .

Optionally, the processor 500 may further include: determining, by the second device, a transmission rank indicator (TRI) corresponding to the uplink data transmission of the second device, wherein the TRI represents the number of layers of the uplink data transmission; and transmitting the TRI to the second device. can be further implemented.

Optionally, a corresponding relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

Optionally, the uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

Optionally, a correspondence between each uplink data transport layer and at least one of the L SRS resources is indicated by an SRI mapping indicator (LSI); The processor 500 may include: transmitting the LSI to the second device; can be further implemented.

Optionally, a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI.

Optionally, the number L of SRS resources indicated by the SRI and the number of layers or codewords of uplink data transmission coincide.

Optionally, a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

5 , the bus architecture may include any number of interconnected buses and bridges. Specifically, one or a plurality of processors represented by the processor 500 and various circuits of the memory represented by the memory 520 are connected together. The bus architecture may also connect various other circuits together, such as peripherals, voltage stabilizers, and power management circuits, all of which are well known in the art and will not be further described herein. A bus interface provides an interface. The transceiver 510 may be a plurality of elements, ie, it includes a transmitter and a receiver, and provides a unit for communicating with various other devices over a transmission medium. The processor 500 is responsible for bus architecture management and general processing, and the memory 520 may store data used when the processor 500 performs an operation.

6 , an embodiment of the present disclosure further provides a user equipment. the user equipment includes a memory 620 , a transceiver 610 , a processor 600 , and a computer program stored in the memory 620 and executable in the processor 600 ; When the processor 600 executes the program, receiving the uplink sounding reference signal (SRS) resource configuration information transmitted by the first device by the transceiver 610 - SRS resource configuration information is K SRS Points to a resource - ; transmitting an SRS signal to the first device based on the SRS resource configuration information; Receiving SRS resource indication information (SRI) transmitted by the first device - SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than K or equal to - ; and performing uplink data transmission based on the SRI. to implement

The transceiver 610 is for receiving and transmitting data under the control of the processor 600 .

Optionally, the processor 600 may further include: receiving a transmission rank indicator (TRI) corresponding to an uplink data transmission transmitted by the first device, wherein TRI indicates a number of layers of the uplink data transmission; and parsing the TRI to obtain the number of layers of uplink data transmission determined by the first device for the second device. can be further implemented.

Optionally, a corresponding relationship exists between each uplink data transport layer and at least one SRS resource indicated by the SRI.

Optionally, the uplink beamforming matrix employed by each uplink data transmission layer is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer.

Optionally, a correspondence between each uplink data transport layer and at least one of the L SRS resources is indicated by an SRI mapping indicator (LSI); The processor 600 may include: receiving the LSI transmitted by the first device; and parsing the LSI to obtain a correspondence between each uplink data transport layer and the L SRS resources. can be further implemented.

Optionally, a correspondence between each uplink data transport layer and at least one SRS resource among the L SRS resources is indicated by the SRI; parsing, by the processor 600, the SRI to obtain a corresponding relationship between each uplink data transport layer and at least one SRS resource among the L SRS resources; and transmitting an uplink data transport layer corresponding to each of the L SRS resources. can be further implemented.

Optionally, the number L of SRS resources indicated by the SRI and the number of layers or codewords of uplink data transmission coincide.

Optionally, a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of uplink data transmission; 1≤k≤L, and k is an integer.

6 , the bus architecture may include any number of interconnected buses and bridges. Specifically, one or a plurality of processors represented by the processor 600 and various circuits of the memory represented by the memory 620 are connected together. The bus architecture may also connect various other circuits together, such as peripherals, voltage stabilizers, and power management circuits, all of which are well known in the art and will not be further described herein. A bus interface provides an interface. The transceiver 610 may be a plurality of elements, ie, includes a transmitter and a receiver, and provides a unit for communicating with various other devices over a transmission medium. For different user equipment, the user interface 630 may be an interface capable of externally connecting and internally connecting the necessary equipment, and the connected equipment includes, but is not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 600 is responsible for bus architecture management and normal processing, and the memory 620 may store data used when the processor 600 performs an operation.

It should be further explained that many functional members described in this specification are all referred to as modules so as to more particularly emphasize the independence of their implementation forms.

In an embodiment of the present disclosure, a module may be implemented by software, such that it may be executed by various types of processors. For example, an identified executable code module may include one or a plurality of physical or logical blocks of computer instructions, eg, built into an object, process, or function. However, the executable code of an identified module may include different instructions stored in different locations, without needing to be physically co-located, and such instructions, when logically combined together, constitute a module and serve a predetermined purpose of the module. to realize

Indeed, an executable code module may be a single instruction or a plurality of instructions, and may even be distributed over a plurality of different code segments, distributed over different programs, and distributed across a plurality of memory devices. Likewise, operational data is identifiable within modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed in different locations (including different storage devices), and may exist, at least in part, merely as electronic signals in a system or network.

When the module can be implemented by software, in consideration of the existing hardware process level, the module can be implemented as software. Under a situation that does not consider cost, any person skilled in the art can respond A corresponding function can be implemented by building a hardware circuit. The hardware circuitry includes typical ultra-high-density integrated (VLSI) circuits or gate arrays and associated semiconductors such as logic chips, transistors, or other discrete devices. Modules may also be implemented by programmable hardware devices, such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

The above exemplary embodiments have been described with reference to the drawings, and many different forms and embodiments are possible without departing from the spirit and teachings of the present disclosure. Accordingly, the present disclosure should not be construed as being limited by the exemplary embodiments presented herein. More specifically, these exemplary embodiments are provided so that this disclosure will be more complete and complete, and will convey the scope of the disclosure to those of ordinary skill in the art. In these figures, component sizes and relative sizes may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular exemplary embodiments only, and is not intended to be limiting. As used herein, the singular forms 'one', 'an' and 'there' are intended to include their plural forms as well, unless the text clearly indicates otherwise. These terms 'comprising' and/or 'inclusive', when used herein, refer to the presence of said feature, integer, step, operation, component, and/or member, but one or more other features, integers, steps. It will be further appreciated that this does not preclude the existence or addition of , manipulations, components, members and/or groups thereof. Unless otherwise indicated, when stated, a range of values includes the upper and lower limits of the range and any subranges therebetween.

The above is a preferred embodiment of the present disclosure, and those of ordinary skill in the art may further implement some improvement and color change on the premise that they do not deviate from the principle according to the present disclosure, and such improvement and color change It should also be pointed out that it should be considered to be included in the protection scope of the present disclosure.

Claims (36)

A data transmission method comprising:
Applied to the first device,
transmitting uplink SRS (Sounding Reference Signal) resource configuration information to a second device, wherein the SRS resource configuration information indicates K SRS resources;
receiving, by the second device, an SRS signal transmitted based on the SRS resource configuration information;
Determining an SRS Resource Indicator (SRS Resource Indicator Information) - The SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is greater than K less than or equal to - ; and
transmitting the SRI to the second device;
including,
One or a plurality of SRS resources among the L SRS resources indicated by the SRI have a corresponding relationship with one or more uplink data transmission layers among uplink data transmission layers in which the second device transmits uplink data.
Data transmission method, characterized in that. According to claim 1,
The method is:
determining a TRI (Transmission Rank Indicator) corresponding to the uplink data transmission of the second device, wherein the TRI is for indicating the number of layers of uplink data transmission; and
transmitting the TRI to the second device;
Data transmission method, characterized in that it further comprises. According to claim 1,
An uplink beamforming matrix employed by each of the uplink data transmission layers coincides with an uplink beamforming matrix of an SRS resource corresponding to the uplink data transmission layer. According to claim 1,
The correspondence between the L SRS resources indicated by the SRI and the uplink data transport layer is indicated by a Layer-to-SRI mapping indicator (LSI); The method is
transmitting the LSI to the second device;
further comprising, or
The corresponding relationship between the L SRS resources indicated by the SRI and the uplink data transmission layer is indicated by the SRI. 5. The method according to any one of claims 1 to 4,
The quantity L of the SRS resource indicated by the SRI is the same as the number of layers or codewords of the uplink data transmission,
a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of the uplink data transmission; 1≤k≤L, and k is an integer. A data transmission method comprising:
Applied to the second device,
receiving uplink SRS resource configuration information transmitted by the first device, wherein the SRS resource configuration information indicates K SRS resources;
transmitting an SRS signal to the first device based on the SRS resource configuration information;
Receiving the SRI transmitted by the first device - The SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is less than or equal to K - ; and
performing uplink data transmission based on the SRI;
including,
One or a plurality of SRS resources among the L SRS resources indicated by the SRI have a corresponding relationship with one or more uplink data transmission layers among the uplink data transmission layers in which the second device transmits uplink data.
Data transmission method, characterized in that. 7. The method of claim 6,
The method is:
receiving a TRI corresponding to the uplink data transmission transmitted by the first device, wherein the TRI is for indicating the number of layers of uplink data transmission; and
parsing the TRI to obtain the number of layers of uplink data transmission determined by the first device for the second device;
Data transmission method, characterized in that it further comprises. 7. The method of claim 6,
An uplink beamforming matrix employed by each of the uplink data transmission layers coincides with an uplink beamforming matrix of an SRS resource corresponding to the uplink data transmission layer. 7. The method of claim 6,
a correspondence between the uplink data transport layer and the L SRS resources indicated by the SRI is indicated by the LSI; The method is
receiving the LSI transmitted by the first device; and
parsing the LSI to obtain a corresponding relationship between each of the uplink data transport layers and one or a plurality of SRS resources among the L SRS resources;
Data transmission method, characterized in that it further comprises. 7. The method of claim 6,
the corresponding relationship between each of the uplink data transport layers and the L SRS resources indicated by the SRI is indicated by the SRI;
The step of transmitting uplink data based on the SRI comprises:
parsing the SRI to obtain a corresponding relationship between each of the uplink data transport layers and one or a plurality of SRS resources among the L SRS resources; and
transmitting each corresponding uplink data transport layer based on the L SRS resources;
Data transmission method comprising a. 11. The method according to any one of claims 6 to 10,
The quantity L of the SRS resource indicated by the SRI is the same as the number of layers or codewords of the uplink data transmission,
a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of the uplink data transmission; 1≤k≤L, and k is an integer. A data transmission device comprising:
a first transmitting module for transmitting uplink SRS resource configuration information to a second device, wherein the SRS resource configuration information indicates K SRS resources;
a first receiving module for receiving an SRS signal transmitted by the second device based on the SRS resource configuration information;
a first determining module for determining an SRI, wherein the SRI indicates L SRS resources among the K SRS resources, the L is an integer greater than or equal to 1, and the L is less than or equal to the K; and
a second transmitting module for transmitting the SRI to the second device;
including,
One or a plurality of SRS resources among the L SRS resources indicated by the SRI, the second device transmits one of the uplink data or each uplink data transmission layer among the plurality of uplink data transmission layers has a corresponding relationship.
Data transmission device, characterized in that. 13. The method of claim 12,
The uplink beamforming matrix used by each of the uplink data transmission layers is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer. 14. The method of claim 12 or 13,
The quantity L of the SRS resource indicated by the SRI is the same as the number of layers or codewords of the uplink data transmission,
a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of the uplink data transmission; 1≤k≤L, and k is an integer. A data transmission device comprising:
a second receiving module for receiving uplink SRS resource configuration information transmitted by the first device, wherein the SRS resource configuration information indicates K SRS resources;
a fifth transmitting module for transmitting an SRS signal to the first device according to the SRS resource configuration information;
A third receiving module for receiving the SRI transmitted by the first device - The SRI indicates L SRS resources among the K SRS resources, L is an integer greater than or equal to 1, and L is the K less than or equal to - ; and
an uplink data transmission module for performing uplink data transmission according to the SRI;
including,
One or a plurality of SRS resources among the L SRS resources indicated by the SRI, the second device transmits one of the uplink data or each uplink data transmission layer among the plurality of uplink data transmission layers has a corresponding relationship.
Data transmission device, characterized in that. 16. The method of claim 15,
The uplink beamforming matrix used by each of the uplink data transmission layers is identical to the uplink beamforming matrix of the SRS resource corresponding to the uplink data transmission layer. 17. The method of claim 15 or 16,
The quantity L of the SRS resource indicated by the SRI is the same as the number of layers or codewords of the uplink data transmission,
a correspondence relationship exists between the k-th SRS resource indicated by the SRI and the k-th layer or k-th codeword of the uplink data transmission; 1≤k≤L, and k is an integer.
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